Vision occurs when light enters the eye and, working together, the cornea and the lens refract light to focus onto a point at the very back of the eye called the retina. The retina converts this light into electrical impulses and sends them to your brain. Your brain then produces an image. Refer to this article for more details: https://cargoeyecare.com/2017/02/13/mean-nearsighted-farsighted/.
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